Johann kroog



' (No Model.)

J. KROOG.

- MEANS FORSUSIPENDING PLATES AND FRAMES IN FILTER PRESSVES.

No. 364,827. Patented June 14, 1887.

Fig.2.

UNITED, STATES PATENT, OFFICE.

J OHANN KROOG, OF HALLE-ON-THESAALE, PRUSSIA, GERMANY.

MEANS FOR SUSPENDING PLATES AND FRAMES IN FILTER-PRESSES.

SPECIFICATION forming part of Letters Patent No. 364,827, dated June 14, 1887,

- Application tiled March 16, 1887. Serial No. 231,148. (No model.)

To all whom it may concern:

Be it known that I, JOHANN Knooe, of the city of Halle-on-the-Saale, in the Kingdom of Prussia, and German Empire, have invented a certain new and useful Improvement in Means for suspending Plates and Frames in Filter-Presses, of' which the following is a specification, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to'improvements in means for suspendingplates and frames in filtor-presses.

In the old means for suspending theplates and frames as heretofore generally employed it very frequently occurs that whenever the said plates and frames are fitted between the bars or spindles somewhat tightly they get hitched, this being most likely to occur in such cases where the substance to be filtered is hot so as to expand the said plates and frames, or where the filtering cloth projects somewhat and iscaught between the filtering-plate and bar or spindle.

In trying to obviate this difficulty by fitting the plates and frames loosely between the bars one is very apt to encounter another disadyantage, which is caused by the fact that the canals or conduits donot fit upon each other drawings, in which it will be noted that the one handle, 00, is formed with an angular surface in such a manner as to rest roof-like on the round surface of the bar or spindle below it,and touching the latter only at the two points 2' 2', while the other handle, 3 on the opposite side,lies flat and straight on its bar or spindle. It will be seen that in this arrangement the corresponding canals on shoving the several plates and frames together will fit together with mathematical trueness center upon center. At the same time the plates and frames are fitted quite loosely between the bars with out any danger of their getting hitched, and, moreover, the free space of the frame will always meet the same surface of the filteringcloth.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A frame for the filtering-plates of filterpresses, having at one edge a handle, as, pro 'vided with the angular surface to form two bearing-points, it, and at the opposite edge having a handle, 3 provided with 'the fiat bearing-face, substantially as and for the purpose described.

In testimony whereof I have signed my name to this specificationin the presence of two subscribing wituesses.

' J OHANN KROOG.

Witnesses:

A. DHEUREUsE, EMIL WOLF. 

